fixup! CI: Build for FreeBSD 14.4 (in addition to latest) and also aarch64

Author: luke-jr

.github/workflows/build.yaml

@@ -43,6 +43,10 @@ jobs:
           - os: debian:oldstable
             config:
               cmake_args: "-DENABLE_API=ON -DCMAKE_C_COMPILER=clang"
+          # CMake can't find Threads support using GCC
+          - os: freebsd:14.4:aarch64
+            config:
+              cmake_args: "-DENABLE_API=ON -DCMAKE_C_COMPILER=gcc"
 
     runs-on: ubuntu-latest